Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataWebControls / System / Data / WebControls / EntityDataSourceWrapperCollection.cs / 1 / EntityDataSourceWrapperCollection.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data; using System.Configuration; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Collections; using System.ComponentModel; using System.Collections.Generic; using System.Data.Metadata.Edm; using System.Data.Mapping; using System.Data.Objects; using System.Reflection; using System.Diagnostics; using System.Data.Common; using System.Data.Objects.DataClasses; using System.Globalization; using System.Data.EntityClient; using System.Collections.ObjectModel; namespace System.Web.UI.WebControls { ////// Summary description for EntityDataSourceWrapperCollection /// internal class EntityDataSourceWrapperCollection : IEnumerable, ICollection, ITypedList { private readonly ObjectContext _context; private readonly List_wrapperList; /// /// Gets the property descriptors exposed to the user. /// private readonly PropertyDescriptorCollection _visiblePropertyDescriptors; ////// Gets all property descriptors. /// internal readonly ReadOnlyCollectionAllPropertyDescriptors; private readonly bool _isReadOnly; private readonly Type _clrEntityType; internal EntityDataSourceWrapperCollection(ObjectContext context, EntitySet entitySet, EntityType restrictedEntityType) { EntityDataSourceUtil.CheckArgumentNull(context, "context"); EntityDataSourceUtil.CheckArgumentNull(entitySet, "entitySet"); _context = context; _wrapperList = new List (); // get handles on the relevant workspaces MetadataWorkspace csWorkspace = ((EntityConnection)context.Connection).GetMetadataWorkspace(); MetadataWorkspace ocWorkspace = context.MetadataWorkspace; // if no restricted type is given, we assume the entity set element type is exposed EntityType entityType = restrictedEntityType ?? entitySet.ElementType; _clrEntityType = EntityDataSourceUtil.GetClrType(ocWorkspace, entityType); // if no restricted type is given and the set is polymorphic, make the collection readonly if (null == restrictedEntityType && 1 < EntityDataSourceUtil.GetTypeAndSubtypesOf(entityType, csWorkspace.GetItemCollection(DataSpace.CSpace), true).Count()) { _isReadOnly = true; } // gather the properties Type componentType = EntityDataSourceUtil.GetClrType(context.MetadataWorkspace, entityType); ReadOnlyCollection columns = EntityDataSourceUtil.GetNamedColumns(csWorkspace, ocWorkspace, entitySet, entityType); List visiblePropertyDescriptors = new List (columns.Count); List propertyDescriptors = new List (columns.Count); foreach (EntityDataSourceColumn column in columns) { var descriptor = new EntityDataSourceWrapperPropertyDescriptor(this, column); propertyDescriptors.Add(descriptor); // if the descriptor does not have a dependent, it is exposed to the user if (!descriptor.Column.IsHidden) { visiblePropertyDescriptors.Add(descriptor); } } _visiblePropertyDescriptors = new PropertyDescriptorCollection(visiblePropertyDescriptors.ToArray(), true); AllPropertyDescriptors = propertyDescriptors.AsReadOnly(); } internal EntityDataSourceWrapper AddWrappedEntity(object entity) { EntityDataSourceWrapper wrapper = new EntityDataSourceWrapper(this, entity); this._wrapperList.Add(wrapper); return wrapper; } #region IEnumerable Implementation IEnumerator IEnumerable.GetEnumerator() { return this._wrapperList.GetEnumerator(); } #endregion IEnumerable Implementation #region ICollection Implementation public int Count { get { return this._wrapperList.Count; } } public void CopyTo(Array array, int index) { ((ICollection)this._wrapperList).CopyTo(array, index); } public bool IsSynchronized { get { return false; } } public object SyncRoot { get { return null; } } #endregion #region ITypedList Implementation public PropertyDescriptorCollection GetItemProperties(PropertyDescriptor[] listAccessors) { if (null == listAccessors) { return this._visiblePropertyDescriptors ; } else { return null;// Implement this feature when we support traversing collections. } } string ITypedList.GetListName(PropertyDescriptor[] listAccessors) { return null; } #endregion #region Internal properties /// /// Gets CLR type or base type for entities exposed in this collection. /// internal Type ClrEntityType { get { return _clrEntityType; } } ////// Indicates whether this configuration supports modifications. /// internal bool IsReadOnly { get { return _isReadOnly; } } ////// Gets object context tracking the contents of this collection. /// internal ObjectContext Context { get { return _context; } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data; using System.Configuration; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Collections; using System.ComponentModel; using System.Collections.Generic; using System.Data.Metadata.Edm; using System.Data.Mapping; using System.Data.Objects; using System.Reflection; using System.Diagnostics; using System.Data.Common; using System.Data.Objects.DataClasses; using System.Globalization; using System.Data.EntityClient; using System.Collections.ObjectModel; namespace System.Web.UI.WebControls { ////// Summary description for EntityDataSourceWrapperCollection /// internal class EntityDataSourceWrapperCollection : IEnumerable, ICollection, ITypedList { private readonly ObjectContext _context; private readonly List_wrapperList; /// /// Gets the property descriptors exposed to the user. /// private readonly PropertyDescriptorCollection _visiblePropertyDescriptors; ////// Gets all property descriptors. /// internal readonly ReadOnlyCollectionAllPropertyDescriptors; private readonly bool _isReadOnly; private readonly Type _clrEntityType; internal EntityDataSourceWrapperCollection(ObjectContext context, EntitySet entitySet, EntityType restrictedEntityType) { EntityDataSourceUtil.CheckArgumentNull(context, "context"); EntityDataSourceUtil.CheckArgumentNull(entitySet, "entitySet"); _context = context; _wrapperList = new List (); // get handles on the relevant workspaces MetadataWorkspace csWorkspace = ((EntityConnection)context.Connection).GetMetadataWorkspace(); MetadataWorkspace ocWorkspace = context.MetadataWorkspace; // if no restricted type is given, we assume the entity set element type is exposed EntityType entityType = restrictedEntityType ?? entitySet.ElementType; _clrEntityType = EntityDataSourceUtil.GetClrType(ocWorkspace, entityType); // if no restricted type is given and the set is polymorphic, make the collection readonly if (null == restrictedEntityType && 1 < EntityDataSourceUtil.GetTypeAndSubtypesOf(entityType, csWorkspace.GetItemCollection(DataSpace.CSpace), true).Count()) { _isReadOnly = true; } // gather the properties Type componentType = EntityDataSourceUtil.GetClrType(context.MetadataWorkspace, entityType); ReadOnlyCollection columns = EntityDataSourceUtil.GetNamedColumns(csWorkspace, ocWorkspace, entitySet, entityType); List visiblePropertyDescriptors = new List (columns.Count); List propertyDescriptors = new List (columns.Count); foreach (EntityDataSourceColumn column in columns) { var descriptor = new EntityDataSourceWrapperPropertyDescriptor(this, column); propertyDescriptors.Add(descriptor); // if the descriptor does not have a dependent, it is exposed to the user if (!descriptor.Column.IsHidden) { visiblePropertyDescriptors.Add(descriptor); } } _visiblePropertyDescriptors = new PropertyDescriptorCollection(visiblePropertyDescriptors.ToArray(), true); AllPropertyDescriptors = propertyDescriptors.AsReadOnly(); } internal EntityDataSourceWrapper AddWrappedEntity(object entity) { EntityDataSourceWrapper wrapper = new EntityDataSourceWrapper(this, entity); this._wrapperList.Add(wrapper); return wrapper; } #region IEnumerable Implementation IEnumerator IEnumerable.GetEnumerator() { return this._wrapperList.GetEnumerator(); } #endregion IEnumerable Implementation #region ICollection Implementation public int Count { get { return this._wrapperList.Count; } } public void CopyTo(Array array, int index) { ((ICollection)this._wrapperList).CopyTo(array, index); } public bool IsSynchronized { get { return false; } } public object SyncRoot { get { return null; } } #endregion #region ITypedList Implementation public PropertyDescriptorCollection GetItemProperties(PropertyDescriptor[] listAccessors) { if (null == listAccessors) { return this._visiblePropertyDescriptors ; } else { return null;// Implement this feature when we support traversing collections. } } string ITypedList.GetListName(PropertyDescriptor[] listAccessors) { return null; } #endregion #region Internal properties /// /// Gets CLR type or base type for entities exposed in this collection. /// internal Type ClrEntityType { get { return _clrEntityType; } } ////// Indicates whether this configuration supports modifications. /// internal bool IsReadOnly { get { return _isReadOnly; } } ////// Gets object context tracking the contents of this collection. /// internal ObjectContext Context { get { return _context; } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ChildChangedEventArgs.cs
- MediaTimeline.cs
- HttpVersion.cs
- ExportOptions.cs
- ConfigurationException.cs
- AttributeCollection.cs
- CommandPlan.cs
- HandlerBase.cs
- ColorConvertedBitmap.cs
- IssuedTokenClientBehaviorsElement.cs
- ArglessEventHandlerProxy.cs
- DigitShape.cs
- PerspectiveCamera.cs
- Serializer.cs
- WebBrowserNavigatedEventHandler.cs
- sqlnorm.cs
- SchemaTypeEmitter.cs
- IsolatedStorageFile.cs
- ReflectEventDescriptor.cs
- SerializationObjectManager.cs
- XmlCustomFormatter.cs
- XmlSchemaException.cs
- CacheMemory.cs
- COM2Enum.cs
- ListItem.cs
- AdCreatedEventArgs.cs
- ImageField.cs
- ForwardPositionQuery.cs
- HttpServerVarsCollection.cs
- ListItemConverter.cs
- TemplatingOptionsDialog.cs
- DbMetaDataColumnNames.cs
- SapiRecoInterop.cs
- Activator.cs
- AttributeCollection.cs
- NavigatorOutput.cs
- FacetChecker.cs
- WebBrowserSiteBase.cs
- FixedSOMSemanticBox.cs
- NodeInfo.cs
- SafeFileMappingHandle.cs
- TextEditorLists.cs
- ITextView.cs
- XdrBuilder.cs
- AxisAngleRotation3D.cs
- DataTemplateKey.cs
- ConfigurationProperty.cs
- Italic.cs
- ClientScriptManager.cs
- GridItemProviderWrapper.cs
- BooleanSwitch.cs
- ReadOnlyCollection.cs
- GlobalEventManager.cs
- ChtmlTextWriter.cs
- TextParagraphCache.cs
- DbConnectionOptions.cs
- XPathParser.cs
- CreateUserErrorEventArgs.cs
- SoundPlayer.cs
- TableLayoutStyle.cs
- SqlProcedureAttribute.cs
- DesignerTransactionCloseEvent.cs
- SortQuery.cs
- ActivityExecutorSurrogate.cs
- CharEntityEncoderFallback.cs
- X509SubjectKeyIdentifierClause.cs
- HtmlInputHidden.cs
- TableRowCollection.cs
- ComboBoxRenderer.cs
- SerializationFieldInfo.cs
- StringFunctions.cs
- HtmlWindow.cs
- AesManaged.cs
- EventSourceCreationData.cs
- InternalsVisibleToAttribute.cs
- KeyValueConfigurationCollection.cs
- XsdDuration.cs
- ToolStripItemRenderEventArgs.cs
- ToolStripKeyboardHandlingService.cs
- EncryptedReference.cs
- KerberosReceiverSecurityToken.cs
- SemaphoreSecurity.cs
- RemotingClientProxy.cs
- QilList.cs
- ObjectDataSourceEventArgs.cs
- HttpResponse.cs
- KeyMatchBuilder.cs
- IdnMapping.cs
- DisplayMemberTemplateSelector.cs
- ListViewGroupCollectionEditor.cs
- DemultiplexingDispatchMessageFormatter.cs
- ReaderOutput.cs
- HttpConfigurationSystem.cs
- ListDictionary.cs
- Utils.cs
- AppDomainGrammarProxy.cs
- Normalization.cs
- PersonalizableAttribute.cs
- SqlClientFactory.cs
- OdbcPermission.cs